<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    const obj = {
    id:123,
    age:20,
    name:"cyrus",
    school:"河北科技大学"
}

let obj1 = {
    age:18,
    ...obj,
    name:"李四"
}

console.log(obj1.age);
console.log(obj1.id);
console.log(obj1.name);

  </script>
</body>
</html>